Invention Grant
- Patent Title: Brush holder in electric motor
- Patent Title (中): 电动机中的刷架
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Application No.: US11919577Application Date: 2006-04-28
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Publication No.: US07671505B2Publication Date: 2010-03-02
- Inventor: Tsutomu Yamamoto , Jun Kondo
- Applicant: Tsutomu Yamamoto , Jun Kondo
- Applicant Address: JP Kiryu-shi
- Assignee: Mitsuba Corporation
- Current Assignee: Mitsuba Corporation
- Current Assignee Address: JP Kiryu-shi
- Agency: Oliff & Berridge, PLC
- Priority: JP2005-134218 20050502; JP2005-134219 20050502
- International Application: PCT/JP2006/308945 WO 20060428
- International Announcement: WO2006/120934 WO 20061116
- Main IPC: H02R39/38
- IPC: H02R39/38

Abstract:
An electric motor includes a cylindrical yoke with a bottom; a bracket that covers an opening of the yoke; and a brush holder. The brush holder includes a brush housing portion, with the brush housing portion having three side piece portions, excluding a bottom piece portion, integrally formed; a first disk portion; and a second disk portion. The first disk portion and the second disk portion are integrated with the bottom piece portion of the brush housing portion. A ring-shaped abutting surface and the bottom piece portion of the brush housing portion are formed on a bracket-side disk surface of the brush holder. The abutting surface is formed as a holding portion that is pressed to the yoke by the bracket via a bracket-side elastic member.
Public/Granted literature
- US20090058220A1 Brush holder in electric motor Public/Granted day:2009-03-05
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